Refactored custom call IC generators:

src/stub-cache.cc

Index: src/stub-cache.cc
diff --git a/src/stub-cache.cc b/src/stub-cache.cc
index f3532533e7e01ac09996b96543dd10e40969d45d..6ebe495f16830b276ba0a115a1d1efe69a5ee018 100644
--- a/src/stub-cache.cc
+++ b/src/stub-cache.cc
@@ -1142,6 +1142,29 @@ Object* KeyedStoreStubCompiler::GetCode(PropertyType type, String* name) {
 }
 
 
+Object* CallStubCompiler::CompileCustomCall(int generator_id,
+                                            Object* object,
+                                            JSObject* holder,
+                                            JSFunction* function,
+                                            String* fname,
+                                            CheckType check) {
+    ASSERT(generator_id >= 0 && generator_id < kNumCallGenerators);
+    switch (generator_id) {
+#define CALL_GENERATOR_CASE(ignored1, ignored2, name)          \
+      case k##name##CallGenerator:                             \
+        return CallStubCompiler::Compile##name##Call(object,   \
+                                                     holder,   \
+                                                     function, \
+                                                     fname,    \
+                                                     check);
+      CUSTOM_CALL_IC_GENERATORS(CALL_GENERATOR_CASE)
+#undef CALL_GENERATOR_CASE
+    }
+    UNREACHABLE();
+    return Heap::undefined_value();
+}
+
+
 Object* CallStubCompiler::GetCode(PropertyType type, String* name) {
   int argc = arguments_.immediate();
   Code::Flags flags = Code::ComputeMonomorphicFlags(Code::CALL_IC,
@@ -1152,6 +1175,15 @@ Object* CallStubCompiler::GetCode(PropertyType type, String* name) {
 }
 
 
+Object* CallStubCompiler::GetCode(JSFunction* function) {
+  String* function_name = NULL;
+  if (function->shared()->name()->IsString()) {
+    function_name = String::cast(function->shared()->name());
+  }
+  return GetCode(CONSTANT_FUNCTION, function_name);
+}
+
+
 Object* ConstructStubCompiler::GetCode() {
   Code::Flags flags = Code::ComputeFlags(Code::STUB);
   Object* result = GetCodeWithFlags(flags, "ConstructStub");